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Anika [276]
2 years ago
9

During sexual reproduction the chromosomes of

Biology
1 answer:
Lynna [10]2 years ago
3 0
1. Two separate individuals are combined together
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Explain the relationship between an infectious disease and a contagious disease.
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Contagious diseases are spread by contact, while infectious diseases are spread by infectious agents. Something "contagious" is by default "infectious" because contact exposed you to the infectious agent, but something infectious isn't always contagious.

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Answer:supports the body

facilitates movement

protects internal organs

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The skeletal system in animals helps in their movement, support and to maintain their shape.In humans ,it consists of bones,which works closely with the muscular system.unlike worms and arthropods that have hydrostatic and exoskeleton respectively, humans have endoskeleton.the bones have the following functions;

*It allows the animal move . The skeleton provides support for the body and through the flexible joints ,the body is able to move

*The skeleton protects the internal organs of the body by protecting them against impact.for examples,the ribs protect the lungs and the skull protects the brain.

*Certain cells in the bone produce immune cell and important components of the bone

*The bones also regulate the level of calcium in the blood

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a.) burning

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